Finding the Fourth Proportional to 319,238.01, 440,534.97 and 174,040.65
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Solution
The fourth proportional to 319,238.01, 440,534.97 and 174,040.65 is: 240,168.75
Step by Step Solution
- Step 1: Write the proportion equation
319,238.01 : 440,534.97 = 174,040.65 : x - Step 2: Convert to fraction form
319,238.01/440,534.97 = 174,040.65/x - Step 3: Cross multiply
319,238.01x = 440,534.97 × 174,040.65 - Step 4: Simplify right side
319,238.01x = 76,670,992,526.53 - Step 5: Solve for x
x = 76,670,992,526.53/319,238.01 - Step 6: Final answer
x = 240,168.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.